Improvement in separating fatty matters from animal substances



H. A` AMELUNG. SEPARATING PATTY MATTER FROM ANIMAL SUBSTANGES. No. 3 7 4 8 2 P atent e d J an. 2 7 1 8 6 3 mnesse/ l rum y 14,/

UNITED STATES PATENT OFFICE.

H. A. AMELUNG, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN SEPARATING FATTY MATTERS FROM ANIMAL SUBSTANCES.

Specification forming part of Letters Patent No. 3?,42, dated January 27, 1863.

To all whom it'my con/cern:

Be it known that I, H. A. AMELUNG, of Chica-go, in the county of Cook and State .ot Illinois, have invented a new and improved machine for crushing and pulverizing animal substances containing fatty matter, with a view of separating the latter from the other substances with it; and I do hereby declare that the following is a full, clear, and exact description of the saine, reference being vhad to the accompanying drawings, making apart of this specification, in which- Figure l is a side sectional view of my in vention, taken inthe line a' x, Fig. 2; Fig. 2, a horizontal section of the same, taken in the line e z, Fig. 1; Fig. 3, a vertical section of a portion ofthe saine, taken in the line y y, Fig.2.

Similar letters ot' reference indicate correspending parts in the several figures.

The object of this invention is to obtain a machine by which animal substances containing fatty matter may bc crushed and pulver ized and the fatty matter separated from the other substances in much less time and with less labor and loss of material than by the old process.

Tovenable those skilled in the art to fully understand and construct my invention, l will proceed to describe it.

A represents a rectangular box, in which an ellipsoidal case, B, is permanently secured. This caseB is formed of cast-iron and in two sections, a a/,the lower section, It', beii'igprovided at its ends with horizontal tlanges b, which rest on the ends ofthe box A, and upon which flanges b flanges c, at the ends of the upper section 1, rest, the flanges b c of the two sec tionsbeing secured together and to the box by proper bolts. Within this case B thereare placed two cast-iron cylinders, C C, which are hollow, and have teeth d attached to their peripheries. These teeth are of Vform, as shown in Figs. 2 and 3, and they are placed on the cylinders C C in spiral rows, the rows of one cylinder being in a reverse position to those ofthe other, as shown clearly in Fig. 2.A The teeth d do not come in contact with the cylinders. Those ot' one cylinder Work within about a'quarter of an inch of the periphery of thecylinder which is opposite to them, the teeth-otY one cylinder being in line with the centers of the spaces between the teeth ot' the other one, as also shown in Fig. 2.

l) D represent two rows ot' stationary teeth,

which are on the inner surface of the lower lsectiona/, of the case B. These rows of teeth are parallel with the axes of the cylinders C C,

and are. placed one below each cylinder at points, as shown clearly in Fig. 1. The teeth D are of the same form as the teeth d of the cylinders, and about of the same dimensions, and they are so placed as to be in line with the centersof the spaces between the teeth d, and the teeth D may be solid' or cast hollow, as shown in Fig. 2, and their external surfaces may be about one-quarter of an inch of the peripheries of the cylinders C C, and the external surfaces of the teeth d.

E E represent two rows of what may be 1termed clearers, which are also of V form,

and are provided each with a shank, e. These Shanks pass through the-upper part ot' the lower section, a', ofthe case B, near each end of it, and are attached atiheir outer ends to bars F F, which arc secured by set-screws f to the outer sides of the box A. Theclearers E are placed in line with the centers of the spaces between the teeth d of t-he cylinders, and they may be adjusted farther in or out by regulating 'the set-screws j', as will be fully understood by referring to Fig. 2.

G is a hopper, which is placed on the upper part of the upper section, a, of the case B, and over the center ot' the space between the cyliuders C C at one end ot' them .and H is an opening, which is made in the lower section, a', of the case B, underneath the cylinders, at the end opposite to that over which the hopper Cr is placed. This opening H is shown in Figs. 1 and 3. The shafts g g of the cylinders C Care connected at one end by gears I I. Underneath the box A there vis a smaller box, J, in which two cylinders, K K, are placed. These cylinders are placed directly underneath the opening H, and they are ot' castiron and hollow, and provided at their peripheries with teeth L, which are in rows, having a parallel position with the axes of the cylin ders, as shown 'nr Fig. l, and they are of V form, as shown in Figs. 2 and 3. The box J is provided with two inclined planes, h h, which serve to direct the substance operated upon to the cylinders K K, or to prevent it from passing down at the outer side of said cylinders, and there are two serrated horizontal plates, M M, secured in the box J, which serve as clearers, performing the same function as the clearers E inthe upper box, A. The plates M are serrated, so as to form V shaped teeth t', to .tit in 'the spaces between the teeth L ofthe cylinders K K. The cylinders K are rotated from the cylinders C by means of gearing N N, and the cylinders K are connected at one end by gears 0. In the lower part of the upper section, a., of the ycase B, at each end,there are placed a row of knives or cutters, P, which project inward in an inclined position between 'the teeth d, as shown in Fig. l.

The operation is as follows: 'lhc animal suhstance to be operated upon is cut into pieces of proper size and placed in the hopper (l. The cylinders C C l( l( rotate in thedirection indicated bythe arrows, and the substanceis drawn down between the cylinders (l C and cut and crushed by the action of' the same, assisted ot' course by the teeth d and cutters P, tlic cylinders crushing the bones and hard substances, and the teeth and knives cutting or reducing` the iiesh or softer portions. 'lhe heat of the cylinders, produced by the admission of steam within them, causes a ready separation of the fatty matter from the other portions or parts ot' the substance in consequence ot'the'comminution ofthe latter. Vlhe stationary teeth D D serve as stops or bearings, and prevent the substance from being carried around bythe cylinders as they rotate, and

they also aid greatly in the cutting or reduc- 'ingopera-tion. The substancepasses from the cylinders G C, through the opening H, down between the cylinders K K, where it is-subjected to a similar operation. By this arrangement the animal substance is reduced to a pulpy state, vand the liber, skin, &c.,`disin tegrated or separated from the pure fatty matter by a slight action of heat, and the fatty matter can at once be drawn oft' and dried, cooked,.or rendered by any process the manufacturer may prefer. and with a less (le-- gree of heat and in about onequarter less time than it can be-accomplish'ed by the usual process, and without losing any of the fat, as is the case when the whole mass is cooked.

Thisinventidn is more especially designed for separating the fatty matter from otl'al, preparator f to the compressing of t-he latter into cakes,which are used for the feeding of swine, poultry, and also as a fertilizer. At present the offal is simply cooked in order to deprive it ofthe grease, and then compressed, and the most powerful hydraulic presses fail to express all the grease from it. llhis invention, it is believed, will prove va. great acquisition in pork-packing and other establishments where meat is cured and prepared for local use and for shipment, and in which the offal and grease is preserved separately and solid, these latternamed articles in large establishments being a great item.

l. do not confine myself to the precise arrangement of means as herein shown and described for crushingr or comminuting the animal substance, nor do l conline myself to the precise means herein described for the separation of thc fatty matter by a gentle heat; but,

Having thus described my invention, what I do claim as new, and desire to secure by Letters Patent, is-

lhe separating of fatty matter from animal substances by subject 11g the-same to a gentle heat during the crushing, grinding, or comxninuting ofthe same,in the maunensubstantiaily a's herein set forth.

H. A. AMELUNG.

Witnesses: t

WM. CocHRANn, W. H. Rien. 

